-1.31% is the change from 535 to 528
Calculation steps:
[( 528 - 535 ) ÷ 535] x 100 = -1.31%
Formula
Percentage change = [(528 - 535) / 535] x 100
Subtract the new number by the original number
528 - 535 = -7
-7 ÷ 535 = -0.013084112149532711
-0.013084112149532711 x 100 = -1.31%